Ms250 troubles.

[Jscb1b]

I've got a ms250 that has new seals. The clam shell is dirko'd together with dirko on both outer halves of the seal. It has a new impulse line and carb boot. The saw will hold 15 inches of vacuum but bleeds off pressure fast. I've sprayed it with soapy water and can't find the leak. Is it time for the bucket of water test?

 

[drf256]

Sounds like it’s time. Usually it’s a seal issue if it holds vacuum and not pressure.